Free on-site gate assessment - hinges, posts, and your LiftMaster or Nice gate operator checked before anything is quoted
The assessment is free and the quote is the invoice.
Fast, Reliable Gate Repair Across Cotati
If your gate in Cotati won’t open, drags on the driveway, or has a dead operator, the core fix usually comes down to one of three things: a shifted hinge post, a misaligned operator arm, or failed entrapment protection. A typical electric gate repair in Cotati runs $220 – $390 for labor before parts, and a full operator replacement usually lands between $850 – $2,200 depending on brand and gate weight. Calder Gate Repair handles all of it, from a sagging swing gate off East Cotati Avenue to a dead keypad near the Rohnert Park line. Call (903) 417-0793 and a live person picks up, day or night, to get a real arrival time on your calendar.

Why Calder Gate Repair Is Cotati’s Preferred Gate Repair Company
Cotati homeowners tend to own their gates for a long time. The homes are older, the lots are established, and a wrought iron swing gate put in during the 90s or early 2000s is now hitting the age where hinge posts shift and operators burn out. That’s the kind of work we see constantly between Myrtle Avenue and the neighborhoods off West Sierra Avenue, and it’s why our crews know exactly what to check first when a Cotati gate starts acting up.
Nico Alvarez leads our team, and he’s built the operation around one idea: no surprises. That means a written price before any work starts, a written guarantee on every repair, and a free second visit if the repair fails within 365 days under our 365-Day Done Right Promise. You won’t get a vague four-hour window from us either. Every Cotati customer gets a live, trackable arrival time, a uniformed and background-checked technician, and a digital invoice you can pay from your phone. That’s the Relay Standard, and it applies to every job we run in Cotati.
We’re part of the Relay Home Co. family, founded in 2009, and our dispatch and scheduling run from the brand’s San Francisco Bay Area office. Cotati crews serve this area locally, which keeps our response times short and our knowledge of local gate setups sharp. Whether you’re near the Cotati/Rohnert Park border or tucked back off East School Street, we know the terrain and the typical gate hardware on these properties.
Sliding Gate Repair in Cotati
Sliding Gate Repair is less common in Cotati than swing gate work, and there’s a simple reason. Most Cotati driveways are short and flat, so homeowners typically install swing gates instead of heavy slide hardware. But there are still plenty of slide gates here, especially on corner lots off Highway 116 and on a few commercial properties scattered through town. When a sliding gate fails, it’s usually the roller trucks, the track bed, or the rack and pinion drive that’s worn out. In Cotati, a slide gate repair typically runs $300 – $550 in labor, with parts like rollers, tracks, and receiver boards added on top depending on what’s actually failed.
We frequently work on Linear and Viking slide gate operators in Cotati, and we stock common rollers, chain, and control board parts for faster turnaround. The big thing with any slide gate repair is the track. If the track is out of level or the rollers are shot, a new operator won’t fix it. You’ll get the same failure in six months. We check the full run of the track before we quote anything.
Track and Roller Service
Slide gate tracks in Cotati collect debris fast, especially on lots with trees near the fence line. Roller trucks that run on pitted or skewed track wear unevenly, and the gate starts to bind mid-travel. We replace roller assemblies in pairs, clean and re-level the track section, and verify the gate rolls smoothly end to end before we re-engage the operator.
Operator and Drive Rail Alignment
A slide gate operator that strains usually points to a rack and pinion alignment problem. When the drive gear and the rack bar aren’t meshing true, the motor works harder than it should, and it trips the current limiter or blows the control board over time. We re-align the rack, adjust the gear mesh, and set the limit switches so the gate stops at the right point every single cycle.
Wrought Iron Gate Repair in Cotati
Wrought Iron Gate Repair is the backbone of what we do in Cotati. These gates are everywhere here, from the 70s-era ranchers off Lancaster Drive to the newer developments around the southern edge of town. The ironwork itself is often in decent shape. What fails is the structure around it: the hinge post, the hinges, the latch, or the mounting points where the operator arm attaches. A typical wrought iron swing gate repair in Cotati runs $250 – $480 in labor, with weld repair or hinge replacement pushing the total higher depending on the damage.
The most common call we get is a gate that drags at the latch side. Homeowners assume the gate panel itself bent or the hinges wore out. Usually the real problem is the hinge post: it’s out of plumb, angled a degree or two toward the latch, and that tiny shift translates into a big drop at the far end. Fixing it means re-setting the post, not just shimming the hinges, because a repair that ignores the post fails again within a season.
Hinge and Post Re-Setting
Cotati’s older residential lots often have long, narrow drive aprons off surface streets, so gates are typically set close to the sidewalk and the property line. That means post footing placement, hinge-post plumb, and swing clearance get tight fast. A post that’s been nudged by a car bumper or undermined by irrigation water will drift, and that drift is what you feel as a dragging gate. We excavate at the base, re-set and plumb the post, and re-shim the hinges to restore clean swing clearance.

Weld and Rust Repair
Wrought iron in Cotati handles the weather reasonably well, but rust still forms where the picket welds meet the bottom rail, especially on gates that sit close to lawn sprinklers. We grind out the rust, re-weld broken pickets and rail joints, and treat the repair so it doesn’t turn into a rust bloom in six months. The gate doesn’t need to be replaced just because a weld popped or a picket loosened.
Trusted Brands We Service in Cotati
Our techs are factory-familiar with nine major gate opener brands, and for Cotati work we lean heavy on the ones we actually see in this market: Ghost Controls, DoorKing, and Viking. A lot of Cotati swing gates run on Ghost Controls swing-arm units, especially on the retrofit jobs where a homeowner automated an old iron gate. DoorKing shows up more on the slide gates and some of the commercial entrances around town, and Viking pops up on both. We stock common local parts for these brands, which means fewer days waiting on a control board and faster turnaround for Cotati customers. Our Gate Repair techs train on all nine brands continuously, so the odds are good the operator on your gate is one we already know inside out.
Common Gate Repair Problems We See in Cotati Homes
- Sagging hinge posts on narrow drive aprons. Cotati’s older lots put gate posts close to the sidewalk, and that proximity means a car bump or years of irrigation water takes the post out of plumb. The gate drags at the latch side, and the operator burns out trying to muscle it shut.
- Misaligned operator arms after a post shifts. When the hinge post moves even half an inch, the operator arm geometry goes wrong. The arm strains, the photocell gets tripped, and the gate starts and stops erratically. This is almost always a structural issue, not an electronics issue.
- Disconnected or misaligned entrapment protection. UL 325 requires photo-eyes or edge sensors on every automated gate, and a lot of older Cotati swing gate setups have them disconnected, misaligned, or bypassed entirely. That’s a safety issue, not a convenience issue, and it’s the first thing we check on any automatic gate call.
- Dead control boards after storms or power surges. Cotati gets its share of coastal-influenced weather rolling through, and a power blip can take out a control board that wasn’t on a surge protector. We check the incoming voltage and the board’s protection circuit before we just swap a part.
Pricing for Gate Repair in Cotati, CA
Most gate repairs in Cotati fall into predictable ranges, and we quote the price in writing before anything gets touched. A hinge and post re-set on a swing gate runs $250 – $480. A slide gate track and roller replacement runs $300 – $550. An operator arm or limit switch repair typically lands between $180 – $340. Full operator replacements run $850 – $2,200 depending on the brand and the gate’s size and weight. The number you agree to at the door is the number on the invoice. Every repair carries the 365-Day Done Right Promise, and if the repair fails within 365 days we return at no charge. Call (903) 417-0793 for an exact quote, and yes, the estimate is free.
We Also Serve Cities Near Cotati
While this page is focused on Cotati, our crews also run regular routes through Rohnert Park, Petaluma, Santa Rosa, and Sebastopol. If you’re just outside Cotati proper or your rental property is in one of those surrounding towns, we can usually schedule you on the same local route. Check our Cotati coverage details or call (903) 417-0793 and we’ll tell you the next available window.
Serving Cotati, CA - Our Local Coverage Area
We’re based in the Cotati area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Gate Repair in Cotati
It’s almost always the gate, not the operator. A drag at the latch side in Cotati usually means the hinge post has come out of plumb, not that the gate panel bent or the operator failed. The operator is then working against a gate that’s trying to fall over, which is why it strains and trips. We check the hinge post first, then the hinges, then the operator travel limits. This exact pattern is the most common repair we do in Cotati.
Test it once a month with a block or a rolled-up trash can. Start the gate closing, and hold the object in the gate’s path. The gate should stop and reverse before it applies significant force. If it doesn’t reverse, the photo-eyes or edge sensors are either misaligned, disconnected, or not wired into the control board correctly. UL 325 requires working entrapment protection on every automated gate, and Calder Gate Repair checks this on every call. If yours fails the test, call (903) 417-0793 and we’ll get it corrected.
Yes, and that’s the default approach. Wrought iron gates are repairable in nearly every case. Hinge posts can be re-set and re-plumbed. Bent or sagging gate sections can be re-hung and re-shimmed. Broken welds and loose pickets can be ground out and re-welded. The only time we recommend replacement is when the steel is too thin from rust perforation to hold a weld, which is rare in Cotati’s climate. We’ll show you the repair option first, always.
Yes, we can absolutely handle both gate types on the same visit if you have a swing gate at the drive and a slide gate at the side yard, or a mixed setup across your property. Our Cotati trucks carry parts for both. If you need a slide gate track re-leveled and a swing gate operator adjusted in the same appointment, we’ll work through both and you get one invoice, one arrival window, and one point of contact for both repairs.
We’re factory-familiar with nine major brands, including the ones we see most in Cotati: Ghost Controls, DoorKing, and Viking. You’ll also see us working on LiftMaster, FAAC, BFT, Linear, Elite, and Mighty Mule. If you’re not sure what brand you have, we’ll identify it on the first visit and let you know if common parts are in stock or if we need a day or two for a specialty board. Call (903) 417-0793 and we’ll look it up while you’re on the phone.
If your gate is dragging, dead, or unsafe in Cotati, don’t wait for it to fail completely at the worst time. Call Calder Gate Repair at (903) 417-0793 for a free estimate. You’ll get a live person, a real arrival time, and a written price before any work starts.
Written by Nico Alvarez, Owner at Calder Gate Repair, serving Cotati and the surrounding Sonoma County area.





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